Adjustable height arthroplasty plate

• US 9,398,928 B2
• Filed: 03/15/2013
• Issued: 07/26/2016
• Est. Priority Date: 09/28/2012
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Lubensky, Scott A, Chavarria, Jason M
• Primary Examiner(s): Stewart, Alvin
• Application Number:
  US13/834,802
• Publication Number:
  US 20140094855A1
• Time in Patent Office: 1,229 Days
• Field of Search: 623 1911- 1914
• US Class Current: 1/1
• CPC Class Codes: A61B 17/68 Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin bone staples A61B17/0642
• CPC Class Codes: A61B 17/746 the longitudinal elements coupled to a plate opposite the femoral head
• CPC Class Codes: A61B 17/8061 specially adapted for particular bones A61B17/70 and A61B17/74 take precedence
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: A61F 2/40 for shoulders
• CPC Class Codes: A61F 2/4014 Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
• CPC Class Codes: A61F 2002/30332 Conically- or frustoconically-shaped protrusion and recess
• CPC Class Codes: A61F 2002/30405 made by screwing complementary threads machined on the parts themselves
• CPC Class Codes: A61F 2002/30433 using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
• CPC Class Codes: A61F 2002/30474 using an intermediate sleeve interposed between both prosthetic parts to be coupled
• CPC Class Codes: A61F 2002/30507 using a threaded locking member, e.g. a locking screw or a set screw
• CPC Class Codes: A61F 2002/3055 for adjusting length
• CPC Class Codes: A61F 2002/30578 having apertures, e.g. for receiving fixation screws
• CPC Class Codes: A61F 2002/4037 Connections of heads to necks
• CPC Class Codes: A61F 2002/4044 Connections of necks to shafts

Abstract

An orthopaedic assembly. The orthopaedic assembly includes a first member adapted to be coupled to a bone and an adjustable connector assembly including an adjuster having a threaded end and a tapered end. The assembly also includes an articulation component including a bearing surface and adapted to be coupled to the tapered end of the adjustable connector assembly. The threaded end is adapted to engage the fixation plate.

Claims

1. An arthroplasty plate comprising:

a fixation plate adapted to be fixed to a surface of a bone, having a recess with a plurality of tapers;

an adjustable connector assembly including an adjuster having a plurality of tapers on a first end a taper on a second end; and

an articulation component including a bearing surface and adapted to be coupled to the tapered second end of the adjustable connector assembly;

wherein the plurality of tapers are adapted to engage at least one of the plurality of tapers in the recess of the fixation plate.

2. The arthroplasty plate of claim 1, wherein the fixation plate includes a plurality of fixation through holes adapted to receive bone screws.

3. The arthroplasty plate of claim 1, wherein the fixation plate is adapted to be fixed onto a humerus.

4. The arthroplasty plate of claim 1, wherein the articulation component is adapted to engage a glenoid.

5. A method of repairing a fractured end of a bone, the method comprising:

removing fractured portions of an articulating bone surface at the end of a bone;

securing a fixation plate to a lateral surface of the fractured end of the bone, the fixation plate being coupled to an adjustable connector assembly including an adjuster having a threaded end and a tapered end;

coupling an articulation component to the tapered end of the adjuster wherein the coupling an articulation component to the tapered end of the adjuster includes inserting a collar over the tapered end of the adjuster and inserting the articulation component onto an outer side of the collar;

threading the adjuster into or out of a threaded bore of the fixation plate to adjust the length of the adjuster extending from the bore of the fixation plate; and

locking the position of the adjuster within the threaded bore.

6. The method of claim 5, wherein locking the position of the adjuster within the threaded bore includes threading a locking screw into the threaded bore.

7. The method of claim 6, further comprising inserting an assembly screw through the locking screw and the adjuster.

8. The method of claim 7, wherein the inserting an assembly screw includes inserting a threaded end of the assembly screw through the locking screw and the adjuster.

9. The method of claim 8, further comprising threading the threaded end of the assembly screw into a threaded recess of the articulation component.